University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Classification: Industrial -> welding fumes

Citations 1

"Use Of A Flow Injection Ion Exchange-atomic Absorption System For Determination Of Manganese, Lead And Copper"
An. Quim. 1985 Volume 81, Issue 1B Pages 117-121
Hernandez, P.;Hernandez, L.;Vicente, J.;Sevilla, M.T.

Abstract: The method involved use of a micro-column of Dowex A-1 (50 to 100 mesh) for pre-concentration of the elements before AAS; concentration. of <1 ppm could be determined semi-automatically with use of a flow injection system. To analyze welding fumes, the samples, collected on cellulose ester filters, were digested with HNO3 - HClO4, the digests were evaporated to dryness, and solution of the residues were applied to the column. The Mn, Pb and Cu were eluted with 0.3 M HCl, 1 M HCl and 16.3 M NH3 - NH4Cl buffer solution, respectively, and the eluates were analyzed by AAS
Manganese Lead Copper Ion exchange Sample preparation Spectrophotometry Cellulose ester Dowex Preconcentration